Heterogeneously Catalyzed Aerobic Oxidation of Methane to a Methyl Derivative
| Autor: | Jeroen A. van Bokhoven, Andrea N. Blankenship, Manoj Ravi, Mark A. Newton |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_element
Cobalt fluorous solvents heterogeneous catalysis Methyl ester Product protection Heterogeneous catalysis 010402 general chemistry 7. Clean energy 01 natural sciences Catalysis Methane methyl ester chemistry.chemical_compound Transition metal Trifluoroacetic acid Organic chemistry Research Articles 010405 organic chemistry Extraction (chemistry) General Chemistry General Medicine product protection cobalt 0104 chemical sciences chemistry Heterogeneous Catalysis Methanol Research Article |
| Zdroj: | Angewandte Chemie (International Ed. in English) Angewandte Chemie. International Edition, 60 (33) |
| ISSN: | 1521-3757 0044-8249 |
| DOI: | 10.1002/ange.202104153 |
| Popis: | A promising strategy to break through the selectivity‐conversion limit of direct methane conversion to achieve high yields is the protection of methanol via esterification to a more stable methyl ester. We present an aerobic methane‐to‐methyl‐ester approach that utilizes a highly dispersed, cobalt‐containing solid catalyst, along with significantly more favorable reaction conditions compared to existing homogeneously‐catalyzed approaches (e.g. diluted acid, O2 oxidant, moderate temperature and pressure). The trifluoroacetic acid medium is diluted ( Methane is aerobically converted to an oxidation‐resistant methyl ester in high yields with a solid cobalt‐containing catalyst at a moderate temperature and pressure. Improved reaction conditions result from the dilution of the trifluoroacetic acid in an inert perfluoroalkane co‐solvent. The fluorous character of the solvent enables the facile recovery of the product ester through a simple liquid‐liquid extraction with non‐fluorous solvent. |
| Databáze: | OpenAIRE |
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